Union of Concerned Scientists

NOVEMBER 3, 2022

I’ve written previously about how the truck industry is fighting regulations at the state and federal level with everything they’ve got. One of the scare tactics truck manufacturers have been pushing is the old industry canard of job-killing regulations. Why would truck regulations impact jobs?

2007 295

2007 Nitrogen Oxides Regulations 2004 295

Union of Concerned Scientists

JUNE 6, 2023

As a result of continuing progress on regulations, the air-polluting emissions of new passenger vehicles currently for sale are thankfully much lower than those of older vehicles. These older vehicles are responsible for 73% of all nitrogen oxide exhaust from passenger vehicles and 64% of reactive organic gases.

Air Pollution 229

Air Pollution Nitrogen Oxides 2004 2003 229

Environment, Law, and History

AUGUST 27, 2023

Dan Farber at Legal Planet recently posted on "Cars, Smog, and EPA" An excerpt: For the first 20 years of federal regulation, Congress set the NOx [nitrogen oxides] standards for new cars itself. That’s quite different from the standards for industrial pollution sources, which Congress has always delegated to EPA.

Nitrogen Oxides 52

Nitrogen Oxides Pollution Control Clean Air Act 2004 52

Union of Concerned Scientists

MARCH 25, 2025

Cleaner cars, cleaner air Our Cleaner Cars, Cleaner Air Report showed that while pre-2004 cars make up fewer than 20% of the cars on the road, they are responsible for the majority of tailpipe pollution because they produce higher amounts of lung-damaging particulate pollution and contribute significantly more smog-forming nitrogen oxide emissions.

Fossil Fuels 241

Fossil Fuels Clean Energy Nitrogen Oxides Renewable Energy 241